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debugfs: make error message a bit more verbose 

When a file/directory is already present in debugfs, and it is attempted
to be created again, be more specific about what file/directory is being
created and where it is trying to be created to give a bit more help to
developers to figure out the problem.

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20190706154256.GA2683@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alistair/sunxi64-5.4-dsi
Greg Kroah-Hartman 2019-07-06 17:42:56 +02:00
parent 0979cf95d2
commit c33d442328
1 changed files with 6 additions and 1 deletions
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7
fs/debugfs/inode.c
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@ -311,8 +311,13 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
inode_lock(d_inode(parent));
dentry = lookup_one_len(name, parent, strlen(name));
if (!IS_ERR(dentry) && d_really_is_positive(dentry)) {
if (d_is_dir(dentry))
pr_err("Directory '%s' with parent '%s' already present!\n",
name, parent->d_name.name);
else
pr_err("File '%s' in directory '%s' already present!\n",
name, parent->d_name.name);
dput(dentry);
pr_err("File '%s' already present!\n", name);
dentry = ERR_PTR(-EEXIST);
}